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tools: Introduce asm-generic/bitops.h

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In preparation for moving linux/bitops.h from tools/perf/util/ to
tools/include/.

Cc: Adrian Hunter <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Arnaldo Carvalho de Melo 2014-12-16 10:53:27 -03:00
commit 88bcea43fd
4 changed files with 37 additions and 8 deletions
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3
tools/perf/MANIFEST
View file

@ -7,8 +7,9 @@ tools/lib/symbol/kallsyms.h
tools/lib/util/find_next_bit.c
tools/include/asm/bug.h
tools/include/asm-generic/bitops/atomic.h
tools/include/asm-generic/bitops/find.h
tools/include/asm-generic/bitops/__ffs.h
tools/include/asm-generic/bitops/find.h
tools/include/asm-generic/bitops.h
tools/include/linux/compiler.h
tools/include/linux/export.h
tools/include/linux/hash.h

1
tools/perf/Makefile.perf
View file

@ -235,6 +235,7 @@ LIB_H += util/include/linux/bitops.h
LIB_H += ../include/asm-generic/bitops/atomic.h
LIB_H += ../include/asm-generic/bitops/find.h
LIB_H += ../include/asm-generic/bitops/__ffs.h
LIB_H += ../include/asm-generic/bitops.h
LIB_H += ../include/linux/compiler.h
LIB_H += ../include/linux/log2.h
LIB_H += util/include/linux/const.h

17
tools/perf/util/include/linux/bitops.h
View file

@ -1,5 +1,5 @@
#ifndef _PERF_LINUX_BITOPS_H_
#define _PERF_LINUX_BITOPS_H_
#ifndef _TOOLS_LINUX_BITOPS_H_
#define _TOOLS_LINUX_BITOPS_H_
#include <linux/kernel.h>
#include <linux/compiler.h>
@ -19,6 +19,14 @@
#define BITS_TO_U32(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32))
#define BITS_TO_BYTES(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE)
/*
* Include this here because some architectures need generic_ffs/fls in
* scope
*
* XXX: this needs to be asm/bitops.h, when we get to per arch optimizations
*/
#include <asm-generic/bitops.h>
#define for_each_set_bit(bit, addr, size) \
for ((bit) = find_first_bit((addr), (size)); \
(bit) < (size); \
@ -30,14 +38,9 @@
(bit) < (size); \
(bit) = find_next_bit((addr), (size), (bit) + 1))
#include <asm-generic/bitops/atomic.h>
static inline unsigned long hweight_long(unsigned long w)
{
return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
}
#include <asm-generic/bitops/__ffs.h>
#include <asm-generic/bitops/find.h>
#endif